J Med Life Sci > Volume 12(1); 2015 > Article
Journal of Medicine and Life Science 2015;12(1):26-29.
DOI: https://doi.org/10.22730/jmls.2015.12.1.26    Published online December 18, 2018.
손목관절 위치 변화에 따른 정중신경의 초음파 소견
,
Ultrasonographic findings of median nerve according to the change of the wrist positions
Eun Young Han, Sang Hee Im
Correspondence:  Sang Hee Im,
Abstract
Objectives : To assess the changes of ultrasonographic findings of median nerve according to the change of wrist positions in normal adults. Methods : We studied 26 normal hands using musculoskeletal ultrasonography. A cross-sectional area, antero-posterior diameter, transverse diameter and a flattening ratio of median nerve were measured in neutral, in 30 degree of flexion and in 30 degree of extension positions of the wrist. Results : The cross-sectional area of median nerve was significantly increased on the wrist flexion (P<0.05), compared to that of the neutral position. The flattening ratio of median nerve was significantly decreased in the position of wrist flexion (P<0.05), but significantly increased in the position of wrist extension (P<0.05), compared to that of the neutral position. Conclusion : Ultrasonography of median nerve showed structural changes according to the changes of the wrist position in normal adults. Further large-scaled studies comparing healthy controls with the patients with carpal tunnel syndrome ranging of age are mandatory to reveal the mechanical effects of wrist position on median nerve.
Key Words: Ultrasonography, Carpal tunnel, Wrist Position
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